Nut-lock.



J. U. LANIBR & J. W. NEWSOM.

NUT LOCK.

APPLICATION FILED FEB. 9. 1914.

L1 32,193, Patented Mar. 16, 1915.

j E I c; l- 1;

I l g JERIMIAH U. LANIER AND JAMES W. NEWSOIM, OF NEVISOM,'1 TORTHCAROLINA;

NUT-LOCK.

Specification of Letters Patent.

Patented Mar. 16, 1915 Application filed February 9, 1914. Serial N 0.817,597.

To all whom it may concern:

Be it known that we, J ERIMIAH U. LANIER and JAMES W. NEWsoM, citizensof the United States, residing at Newsom, in the county of Davidson,State of North Carolina, have invented certain new and usefulImprovements in Nut-Locks; and we do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to new and useful improvements in nut looks.

The object of the present invention resides in the provision of a deviceparticularly adapted for locking the nuts on rail joints and which maybe readily and quickly applied to the nuts after they have been appliedand tightened.

It is further the object to provide such a nut lock which may be appliedto any bolt and nut having adjacent thereto a flange or other projectionagainst which a portion of the lock may abut.

A further object of the invention resides in the provision of such a nutlock which is efficient and durable in use at all times and which is ofsuch simple structure that it may be manufactured at a comparatively lowcost.

With these and other objects in view, the invention resides in the novelcombination, formation and arrangement of parts to be more fullyhereinafter described and illustrated in the accompanying drawings andparticularly pointed out in the claims hereto appended.

Reference is had to the accompanying drawings and similar characters ofreference designate corresponding parts throughout the several views,and in which:

Figure 1 is a side elevation of a rail joint, showing the improved nutlock associated therewith, Fig. 2 is a transverse sectional view throughthe rail joint on the line 22 of Fig. 1, Fig. 3 is a perspective view ofthe nut and Fig. 1 is a perspective view of the nut lock.

Referring now more particularly to the accompanying drawings, 5designates the meeting ends of rail sections, and 6 the usual fishplates associated therewith. Bolts 7 are passed through the fish platesand rails and the nuts 8 are threaded on said bolts.

The nut lock which is associated with each bolt and nut comprises asingle length i of resilient wire bent in substantially U- shaped formto embrace the inner portion of the nut and which has the free ends ofits arms inwardly directed for the purpose of holding the lock on thenut. One arm of the U-shaped portion is provided with an extension 9which is rearwardly directed to serve as a finger piece whereby the lockmay be rotated and which may also serve as a stop, as hereinafterexplained. The inner portion of the nut is preferably cut away at 10 atits inner portion to provide a circular surface to rotatably receive thelock.

The bight of the U-shaped portion is coiled at 11. This is an importantfeature, as in addition to lending resiliency to the U-shaped portion,the coils engage against the flange of the fish plate and form a stop tolimit the rotation of the nut. In operation, the nuts are tightened onthe bolts and the locks are then positioned about the cutaway portionsof the nuts. Undesired rotation of the nuts will thus move the nutsuntil their coiled portions 11 engage the flange of the fish plate,whereupon the nuts will ongage said coiled portions and be held againstundesired rotation. Should it be desirable under some conditions not touse the coils 11 as an abutment, the extension 9 may engage against theflange of the fish plate or other stop and the nut engage against thecoils and be thus held.

It will be further noted that this lock can be used with a nut nothaving the cutaway portion 10. In this use the lock will embrace thebolt.

lVhat is claimed is:

1. In combination with a bolt and nut, a nut lock comprising asubstantially U- shaped resilient member engaging the nut, a pluralityof coils formed at the bight portion of said member and an extensionformed at the free end of one of the arms of said member, said extensionbearing against the surface against which the nut contacts.

2. A nut lock comprising the combination with a nut having its innerportion cut away to provide a circular surface, of a substantiallyU-shaped resilient member adapted to embrace said inner portion and aplurality of alined coils formed at the bight of said member.

3. A nut lock comprising the combination with a bolt and nut, of asubstantially U- shaped resilient member engaging the inner face' of thenut and a plurality of coils gaging the surface against which the nut is7 formed at the bight of said member and ento be screwed. v

gaging a side of the nut. V V I .In testimony whereof, weaifix oursigna-4. A nut lock comprising the combination 7 tures in the presence of twowitnesses. 5 with a bolt and nut having a circular por- J U LANIER tionformed thereon, of a substantially U- shaped resilient member embracingsaid circular portion, a plurality of coils formed at Witnesses:

the bight' of said member and an extension J. W. CAsHATT, 10 formed onsaid U-shaped member .anden- W, W. BUSSELL.

Copies of this patent may be obtained for five cents each, by addressingQommissioneiof Patents,

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